package worldinruin.utils;

import java.beans.PropertyChangeListener;

public interface IObservable {
	
	/**
	 * Adds a propertychangelistener.
	 * @param observer Propertychangelistener.
	 */
	public void addPropertyChangeListener(PropertyChangeListener observer);
	
	/**
	 * Removes a propertychangelistener.
	 * @param observer Propertychangelistener.
	 */
	public void removePropertyChangeListener(PropertyChangeListener observer);
}
